分子编辑增强了针对menaquinone的抗生素Lysocin E和WAP-8294A2的氧化抵抗
Junhao Fu1, Yosuke Nakata1, Hiroaki Itoh1
1Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
Chemistry (Weinheim an der Bergstrasse, Germany)
|June 16, 2023
概括
莱索辛E和WAP-8294A2通过破坏细菌膜,表现出强大的抗菌活性. 用纳夫他林取代他们的内醇环,提高了氧化抵抗力,同时保持了抗菌功效,提供了新的药物开发策略.
科学领域:
- 药用化学 医学化学
- 自然产品的合成自然产品的合成
- 抗微生物药物发现 抗微生物药物发现
背景情况:
- 莱索辛E和WAP-8294A2是具有强大的格拉姆阳性抗菌活性的宏环.
- 它们的机制涉及与menaquinone形成一个电子捐赠者-受体复合体,破坏细菌膜.
- 这些化合物的内醇环易受氧化降解,阻碍药物开发.
研究的目的:
- 为了增强Lysocin E和WAP-8294A2.2.的氧化稳定性.
- 探索用替代性芳香成分取代内醇环对抗菌活性和稳定性的影响.
- 开发一种分子编辑策略,以改善天然产品的候选药物.
主要方法:
- 莱索辛E和WAP-8294A2类似物的固体相总合成.
- 设计和合成含有佐,索和乙烯环的类似物.
- 评估抗菌活性对抗格拉姆阳性细菌.
- 使用过氧基激素对氧化降解的耐药性的评估.
主要成果:
- 与纳夫他林 (1d/2d) 的类似物表现出强烈的抗菌活性,与母化合物 (1a/2a) 相比.
- 福 (1b/2b) 和提奥芬 (1c/2c) 的类似物显示抗菌活性显著降低.
- 含有纳夫他林的类似物 (1d/2d) 显示出对氧化降解的高抗性.
- 配电纳类型 (1d/2d) 维持了menaquinone的相互作用机制.
结论:
- 用甲部分取代醇环是一种有效的策略,可以提高Lysocin E和WAP-8294A2.2.的氧化稳定性.
- 这种分子编辑方法保留了强大的抗菌活性,并为开发更稳定的抗菌剂提供了可行的途径.
- 该研究强调了一种新的策略,用于增强天然产品的药理性质.
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